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/* Copyright (C) 1989-2020 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or
(at your option) any later version.
groff is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "lib.h"
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include "errarg.h"
#include "error.h"
#include "cset.h"
#include "refid.h"
#include "search.h"
/* for isatty() */
#include "posix.h"
#include "nonposix.h"
extern "C" const char *Version_string;
static void usage(FILE *stream)
{
fprintf(stream,
"usage: %s [-i XYZ] [-t N] database ...\n"
"usage: %s {-v | --version}\n"
"usage: %s --help\n",
program_name, program_name, program_name);
}
int main(int argc, char **argv)
{
program_name = argv[0];
static char stderr_buf[BUFSIZ];
setbuf(stderr, stderr_buf);
int opt;
static const struct option long_options[] = {
{ "help", no_argument, 0, CHAR_MAX + 1 },
{ "version", no_argument, 0, 'v' },
{ NULL, 0, 0, 0 }
};
while ((opt = getopt_long(argc, argv, "vVi:t:", long_options, NULL)) != EOF)
switch (opt) {
case 'V':
do_verify = true;
break;
case 'i':
linear_ignore_fields = optarg;
break;
case 't':
{
char *ptr;
long n = strtol(optarg, &ptr, 10);
if (n == 0 && ptr == optarg) {
error("bad integer '%1' in 't' option", optarg);
break;
}
if (n < 1)
n = 1;
linear_truncate_len = int(n);
break;
}
case 'v':
{
printf("GNU lookbib (groff) version %s\n", Version_string);
exit(0);
break;
}
case CHAR_MAX + 1: // --help
usage(stdout);
exit(0);
break;
case '?':
usage(stderr);
exit(1);
break;
default:
assert(0);
}
if (optind >= argc) {
usage(stderr);
exit(1);
}
search_list list;
for (int i = optind; i < argc; i++)
list.add_file(argv[i]);
if (list.nfiles() == 0)
fatal("no databases");
char line[1024];
int interactive = isatty(fileno(stdin));
for (;;) {
if (interactive) {
fputs("> ", stderr);
fflush(stderr);
}
if (!fgets(line, sizeof(line), stdin))
break;
char *ptr = line;
while (csspace(*ptr))
ptr++;
if (*ptr == '\0')
continue;
search_list_iterator iter(&list, line);
const char *start;
int len;
int count;
for (count = 0; iter.next(&start, &len); count++) {
if (fwrite(start, 1, len, stdout) != (size_t)len)
fatal("write error on stdout: %1", strerror(errno));
// Can happen for last reference in file.
if (start[len - 1] != '\n')
putchar('\n');
putchar('\n');
}
fflush(stdout);
if (interactive) {
fprintf(stderr, "%d found\n", count);
fflush(stderr);
}
}
if (interactive)
putc('\n', stderr);
return 0;
}
// Local Variables:
// fill-column: 72
// mode: C++
// End:
// vim: set cindent noexpandtab shiftwidth=2 textwidth=72:
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